The following reports and papers are available for download. All are publicly available, without any distribution limitation.

"NDARC, NASA Design and Analysis of Rotorcraft," by Wayne Johnson. NASA TP 2009-215402. December 2009. This is the NDARC theory manual (release 1.1).  NASA TP 2009-215402

"NDARC. NASA Design and Analysis of Rotorcraft," by Wayne Johnson. NASA TP 2015-218751, April 2015. This is the NDARC theory manual (release 1.9). Theory manual and input manual for current release are at "Current Release" page.  NASA TP 2015-218751

"NDARC - NASA Design and Analysis of Rotorcraft. Theoretical Basis and Architecture," by Wayne Johnson. AHS Aeromechanics Specialists’ Conference, San Francisco, CA, January 20-22, 2010. Summary of theory manual; short and long versions. Revised May 2011. NDARC-theory-short or NDARC-theory-long

"NDARC - NASA Design and Analysis of Rotorcraft. Validation and Demonstration," by Wayne Johnson. AHS Aeromechanics Specialists' Conference, San Francisco, CA, January 20-22, 2010. Validation for development test cases (UH-60A, CH-47D, XH-59A, XV-15), and demonstration of analysis and design capability from code development. Revised December 2017. NDARC-results

"Propulsion System Models for Rotorcraft Conceptual Design," by Wayne Johnson. Fifth Decennial AHS Aeromechanics Specialists' Conference, San Francisco, CA, January 22-24, 2014. Summary of propulsion models. Revised February 2014. NDARC-propulsion (paper) NDARC-propulsion-pres (presentation)

List of other reports and papers regarding NDARC (February 2018). NDARC-reports-papers